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7609125 |
System, device and method for reducing cross-talk in differential signal conductor pairs
Systems, devices and methods are disclosed herein for reducing crosstalk between pairs of differential signal conductors. One or more ground traces connected to one or more over- or under-lying...
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7598823 |
High-speed digital transmission signal line for providing a desired dynamic resistance
A high-speed digital transmission signal line providing better dynamic resistance to be applied in an LVDS transmission system to function as an electronic line, an optical line, and a serial...
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7595704 |
System and apparatus for a three-line balun with power amplifier bias
A balun that includes a first conductor, a second conductor, and a third conductor. The first conductor has a first length. The first conductor also has a first end connected to a first balanced...
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7595703 |
Balun and electronic device using this
A balun is provided in which first balanced line and second balanced line are disposed on a nearly the same plane, first unbalanced line is disposed above first balanced line at a predetermined...
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7583168 |
Resonator
An object of the present invention is to provide a resonator capable of constituting a variable filter which has a small size, high mass productivity, low loss and high reproducibility of...
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7579923 |
Laminated balun transformer
A laminated balun transformer that may be used for lines having various impedances includes a first magnetic substrate, a laminated body, a second magnetic substrate, and external electrodes. The...
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7573355 |
Integrated bandpass/bandstop coupled line filter
An apparatus and method for attenuating selected frequency bands in a microstrip filter having a plurality of microstrip resonators. The filter comprises plural resonators, a first of the plural...
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7564325 |
High directivity ultra-compact coupler
A coupler includes a substrate and a stack of first and second dielectric layers extending over a top surface of the substrate. The first dielectric layer comprises different dielectric material...
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7561006 |
Low loss electrical delay line
A delay line system able to reduce the microwave loss by reducing the effective dielectric loss and dielectric constant of the system including a signal line, dielectric system with opened trench...
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7545241 |
Nanoparticle transmission line element and method of fabricating the same
A microstrip line element is composed of a first electrode layer ( 10 ) as a substrate which is more of a metal, a dielectric layer ( 20 ) formed by oxidizing, nitriding or oxiynitriding the first...
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7532088 |
Microstrip coupler
A microstrip coupler is provided for optimizing directivity by improving alignment of even and odd mode phase components. In one form, the microstrip coupler comprises a linear main line with a...
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7525397 |
Stripline directional coupler having a wide coupling gap
The provided stripline directional coupler, having two coupling conductors galvanically isolated with respect to a grounding layer at zero potential, includes, in particular, a multilayer conductor...
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7518473 |
Methods for designing switchable and tunable broadband filters using finite-width conductor-backed coplanar waveguide structures
This invention uses the structures of the finite-sized conductor-backed coplanar waveguides for designing broadband switchable and tunable signal filters. The design methods construct a plurality...
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7518462 |
Transmission line pair having a plurality of rotational-direction reversal structures
A transmission line pair has two transmission lines placed adjacent to each other in parallel to a signal transmission direction of the transmission lines as a whole. Each of the transmission lines...
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7515015 |
High speed signal transmission structure
A signal transmission structure includes a driving circuit block, a receiving circuit block, a main transmission line, and a copper patch. The main transmission line connects the driving circuit...
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7477118 |
High frequency device mounting substrate and communications apparatus
Terminal electrodes 9 for carrying a high frequency device 3 are formed on a surface of a circuit board having its reverse surface covered with a reverse surface conductor layer 6 , and a...
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7468645 |
Signal line circuit device
A signal line circuit device is disposed on top of a mounting substrate. The signal line circuit device comprises a dielectric layer, a signal line formed on one surface of the dielectric layer,...
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7446625 |
Narrow impedance conversion device
An impedance conversion device has four conductors arranged so that the first and second conductors form a transmission line having a first characteristic impedance, the third and fourth conductors...
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7446624 |
Transmission line and wiring forming method
To provide a transmission line capable of absorbing the reflection caused by mismatching between impedances and restraining the attenuation value of a signal. The following wiring patterns are...
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7436267 |
Microstrip line dielectric overlay
A printed circuit board has a dielectric constant different from the dielectric constant of free space, with at least two microstrip lines routed adjacent to one another on a surface of the printed...
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7432776 |
Dielectric-filled transmission lines
A printed circuit board transmission line has an outer conductive wall surrounding an inner dielectric core. The transmission line may be disposed inside a grounded shielding to provide a form of...
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7432775 |
High speed electronics interconnect having a dielectric system with cylindrical holes therein
Fundamental interconnect systems for connecting high-speed electronics elements are provided. The interconnect systems consists of the signal line, dielectric system with opened trench or slot...
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7425877 |
Lange coupler system and method
A system and method for the fabrication of high reliability high performance Lange couplers (optionally including capacitors ( 1011 ), inductors ( 1012 ), multi-layer interconnects ( 1013 ), and...
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7414492 |
Flexible microwave transmission line
A power amplifier (power amplifier) having multiple solid state sub-amplifiers connected in parallel between the power amplifier input and the power amplifier output are described. The signal input...
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7397320 |
Non-uniform transmission line for reducing cross-talk from an aggressor transmission line
A non-uniform transmission line, including at least a first section with length L 1 , uniform width W 1 and thickness h 1 , and a second section with length L 2 , uniform width W 2 and thickness...
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7388448 |
Semi-suspended coplanar waveguide on a printed circuit board
A printed circuit board includes two differential signal traces, a layer of core material, a layer of filler material, and a ground plane. The filler material is replaced by an air core under the...
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7385455 |
Monolithic integrated circuit with integrated interference suppression device
The invention discloses a monolithic integrated circuit with at least one signal connection carrying a signal and with an interference suppression device integrated in the circuit to reduce...
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7369020 |
Transmission line comprising a plurality of serially connected rotational direction-reversal structures
One transmission line includes a first signal conductor which is placed on one surface of a substrate formed from a dielectric or semiconductor and which is formed so as to be curved toward a first...
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7352257 |
Flexible print cable having alternating signal and ground conductors and connector for the same
A flexible print cable includes signal lines and ground lines. The signal lines and the ground lines are disposed alternately on each of an upper surface and an under surface of a film. The...
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7348865 |
Impedance-matching coupler
An impedance-matching coupler ( 1 ) comprises a dielectric substrate ( 10 ) onto which a conducting strip ( 12 ) is disposed. A dielectric layer ( 14 ), preferably a dielectric film, is formed on...
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7336139 |
Flexible interconnect cable with grounded coplanar waveguide
A high speed flexible interconnect cable includes a number of conductive layers and a number of dielectric layers. Conductive signal traces, located on the conductive layers, combine with the...
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7334325 |
Apparatus and method for improving coupling across plane discontinuities on circuit boards
The invention relates to an apparatus and method for improving coupling across plane discontinuities on circuit boards. A circuit board includes a discontinuity, e.g., a split, slot, or cutout,...
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7330084 |
Printed circuit board having a bond wire shield structure for a signal transmission line
A printed circuit board for a high-speed semiconductor package uses bonding wires as a shield structure, e.g., to shield an open portion of signal transmission lines, and thereby reduce the...
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7307497 |
Method for producing a coplanar waveguide system on a substrate, and a component for the transmission of electromagnetic waves fabricated in accordance with such a method
A component for the transmission of electromagnetic waves and a method for producing such a component is provided, whereby conductors of a coplanar waveguide system are embedded in a membrane such...
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7307293 |
Direct-connect integrated circuit signaling system for bypassing intra-substrate printed circuit signal paths
A direct-connect signaling system including a printed circuit board and first and second integrated circuit packages disposed on the printed circuit board. A plurality of electric signal conductors...
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7304555 |
Permalloy loaded transmission lines for high-speed interconnect applications
To facilitate high frequency operation, transmission lines for high-speed interconnect applications in CMOS technologies are loaded with patterned permalloy or other ferromagnetic material films....
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7292449 |
Virtual ground return for reduction of radiated emissions
A digital apparatus having a cable comprising a plurality of high-speed and low-speed signal carrying conductors, the conductors carrying the low-speed signals are bypassed to a signal ground with...
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7286029 |
Passive devices formed in grooves on a substrate and a method of manufacture
A method for constructing passive devices on a substrate and a device is provided that is fabricated in accordance with the a method. The method includes the steps of: forming a plurality of...
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7274267 |
Balun
A balun in which the phase shift may be reduced significantly is disclosed. The balun has three lines, i.e. a first line b, a second line a and a third line c, arranged in parallel with the ground...
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7262974 |
Techniques for alleviating the need for DC blocking capacitors in high-speed differential signal pairs
A circuit board has a first component interface configured to connect to a first circuit board component, a second component interface configured to connect to a second circuit board component, a...
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7262673 |
Transmission line
A transmission line of striptype includes a dielectric having a local dielectric constant alternating between at least two different values. It can be manufactured by applying a first layer ( 3 )...
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7259644 |
Substrate having microstrip line structure, semiconductor device having microstrip line structure, and manufacturing method of substrate having microstrip line structure
A substrate having a microstrip line structure is provided comprising a trench provided at least in one main surface of a base body constituting the substrate having an inner surface geometry of an...
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7256667 |
Waveguide device and method for making same
A monolithic micromachined waveguide device or devices with low-loss, high-power handling, and near-optical frequency ranges is set forth. The waveguide and integrated devices are capable of...
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7236064 |
Laminated balun transformer
The present invention relates a laminated balun transformer with an improved insertion loss characteristic in a pass band. The laminated balun transformer includes a first strip line and a third...
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7224249 |
Stripline structure with multiple ground vias separated by no more than 100 mil
A stripline structure. The stripline structure includes a stripline transmission line, a first ground plane, a first dielectric layer overlaying the first ground plane, a conductive trace...
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7212088 |
Electrical connecting element and a method of making such an element
An electrical connecting element ( 1 ) comprises a dielectric substrate ( 2 ) on which a plurality of coplanar and substantially parallel conductor paths ( 3, 4, 5; 11, 12 13; 23, 24, 25, 26, 27 )...
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7187256 |
RF package
A novel package includes a substrate including an upper surface ground plane connected to a lower surface ground plane by vias through the substrate, a die located on the upper ground plane and...
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7180394 |
Millimeter wave (MMW) radio frequency transceiver module and method of forming same
A low cost and high performance millimeter wave (MMW) radio frequency transceiver module includes a substrate board and plurality of microwave monolithic integrated circuit (MMIC) chips supported...
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7170361 |
Method and apparatus of interposing voltage reference traces between signal traces in semiconductor devices
A method and apparatus for substantially reducing or eliminating electromagnetic and electrostatic coupling between signal traces on a substrate is disclosed. A substrate, such as a printed circuit...
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7161450 |
Microwave transmission line having dielectric film layers providing negative space charge effects
A microwave transmission line includes a substrate of high-resistivity silicon, a first dielectric film and a second dielectric film successively formed on the principal surface of the substrate...
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